Question

The correct statement regarding entropy is:

• A. at absolute zero temperature, entropy of a perfectly crystalline solid in zero
• B. at absolute zero temperature, the entropy of a perfectly crystalline substance is $+$ve
• C. at absolute zero temperature, the entropy of all crystalline substances is zero
• D. at $0^o$C, the entropy of a perfect crystalline solid is zero

Answer 1

The correct option is A at absolute zero temperature, entropy of a perfectly crystalline solid in zero

According to the third law of thermodynamics,

The entropy of a system approaches a constant value as the temperature approaches absolute zero. With the exception of non-crystalline solids (glasses), the entropy of a system at absolute zero is typically close to zero.

The correct statement regarding entropy is represented by the option $A$.